Filtra

Russian Centre of Education (Arkhangelsk / Northwestern Federal District / Russia)
Swiss Center Ltd. (San Pietroburgo / Northwestern Federal District / Russia)
International Studies Centre (Apatity / Northwestern Federal District / Russia)
Nevsky Institute of Language & Culture (San Pietroburgo / Northwestern Federal District / Russia)
INTEX (Surgut / Ural Federal District / Russia)
Lingua-Seasons (Mosca / Central Federal District / Russia)
Linguistic Centre - Cambridge (Novosibirsk / Siberian Federal District / Russia)
LLC Petrion Russian in Petersburg (San Pietroburgo / Northwestern Federal District / Russia)